Simultaneous measurements of thermostimulated exo-electron emission, luminescence, and desorption from a KBr single crystal

0537681 - FZÚ 2021 RIV NL eng J - Journal Article
Pokorný, Petr - Novotný, Michal - Dekhtyar, Y. - Lushchik, A. - Hruška, Petr - Fitl, Přemysl - Musil, Jindřich - Jaaniso, R. - Lančok, Ján
Simultaneous measurements of thermostimulated exo-electron emission, luminescence, and desorption from a KBr single crystal.
Optical Materials. Roč. 109, Nov (2020), s. 1-6, č. článku 110223. ISSN 0925-3467. E-ISSN 1873-1252
R&D Projects: GA MŠMT(CZ) EF16_019/0000760; GA MŠMT EF16_013/0001406; GA MŠMT(CZ) LO1409; GA MŠMT(CZ) LM2015088; GA ČR GA18-17834S
Grant - others:OP VVV - SOLID21(XE) CZ.02.1.01/0.0/0.0/16_019/0000760; OP VVV - SAFMAT(XE) CZ.02.1.01/0.0/0.0/16_013/0001406
Institutional support: RVO:68378271
Keywords : thermostimulated exo-electron emission * luminescence * desorption * low temperature * KBr
OECD category: Physical chemistry
Impact factor: 3.080, year: 2020
Method of publishing: Limited access
https://doi.org/10.1016/j.optmat.2020.110223

The results of simultaneous measurements of three thermally stimulated phenomena (TSP) are presented as functions of temperature: thermally stimulated exo-electron emission (TSEE), thermally stimulated luminescence (TSL) and thermally stimulated desorption (TSD). These phenomena can be described by similar mathematical relationships. The measurements have been carried out in the temperature range ΔT = -196 to 430 ◦C (ΔT = 77–700 K) under conditions of ultrahigh vacuum (p < 10⁶ Pa). A crystal of the potassium bromide (KBr) was selected to demonstrate the measurements. It becomes evident that some temperature maxima coincide, which evidently suggests a common source of these processes and similar relaxation processes. In particular, the connection of TSEE and TSD in the low-temperature range has not been sufficiently well investigated to date.
Permanent Link: http://hdl.handle.net/11104/0315544